Just a heads up, if you want this feature enabled you hatfa call sprint and have it turned on for that particular line. The error isnt really and error. Theyll push a service update and a prl update for whatever reason. after a reboot, youll be able to accept and esign. Boom. Wifi calling. Also, Tech support seems to be the only people that can do this.
I actually had to call as my device wouldn't activate by default. Sprint had to push the settings to my device. This helped me know my device wasn't defective as no one else seemed to have a problem but me. Thanks for the thread!
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20 Sep 2014
By Tomek Kondrat
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?